Lumber-drier



(No Model.)

U. E. BRUMBAUGH.

LUM-BER DRIRE.

Patented Nov. 25, 1,890.

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muro-umm, wnsnmcfcm o c UNITED STATES PATENT Ormes.

IIPTON E. BRUMBAUGII, OF MARION, INDIANA.

LUIVIBER-DRIER.

SPECIFICATION forming part of Letters Patent No. 441,278, dated November25, 1890.

Application filed July 18, 1889- Serial No. 317,870. (No model.)

To @ZZ whom it may concern:

Be it known that I, UPTON E. BRU MBAU GH, a citizen of the UnitedStates, residing at Marion, in the county of Grant and State of Indiana,have invented a new and useful Lumber-Drier, of which the following is aspecification.

This invention relates to lumber-driers, and particularly to that classespecially designed for the drying of veneers.

The objects of the invention are to provide a drier of cheap and simpleconstruction in which the compartments thereof are so constructed andarranged as lto be adapted for the reception and drying of veneers ofdifferent sizes, and that in such a manner as to prevent any warping ortwisting of the veneers during the drying operation, and in which theveneers are irst dried at their centers and gradually and evenly towardtheir edges; furthermore, to provide means whereby a series ofdrier-sections constructed as mentioned may be successfully mounted oneupon the other and combine to produce a successful drier, as aboveindicated.

Vith the above general objects in View the invention consists in certainfeatures of construction hereinafter specified, and particularly pointedout in the claims.

Referring to the drawings, Figure l is a perspective of a drierconstructed in accordance with my invention. Fig. 2 is a horizontalsection taken through one of the drier-sections. Fig. 3 is a vert-icallongitudinal section taken through one of the drier-sections. Fig. 4. isa detail view of one of the cleats.

Like numerals indicate like parts in lall figures of the drawings.

In practicing my invent-ion a special case may be built for thereception of the drying sections, hereinafter described, or I mayutilize any ordinary room or building adapted for the purpose, which, itwill be understood, is provided with suitable and convenient doors.

1 designates in this instance the outer case or casing, in which islocated a series of three (or it may be a greater or less number) drying-sections 2. These dryingsections may be of any desired length andare constructed as follows: A series of vertical partitions 2n arelocated at each end of the proposed section and suitably secured to theiioor of the casing or room l, said partitions being spaced a suitabledistance apart, and those of one series occurring opposite those of theother series, as shown in Figs. 2 and 3. The opposite partitions 2a areconnected in pairs and at opposite faces or sides by pairs of oppositehorizontal cleats 3. Any number of pairs may be employed for connectingeach pair of partitions 2, but twov are sufficient. The ends of thecleats are flush with the outer sides of the partitions, and said endsare beveled, as at 4, so that the opposite entrances to the compartmentsformed by the partitions are flared to facilitate the insertion of theveneers, which when inserted are somewhat snugly opposite cleats, whichcleats are such a distance apart as to approximate the thickness of theveneers.

The compartments or spaces aforesaid are subdivided vertically bymeans-of a series of divisional strips 9, located centrally between theends of each compartment, forlning opposite spaces, into which theveneers may be inserted, at each side of the section.

8 represents a series of guide-strips, one being located in and formingthe bottom of each compartment, which strips are provided upon theirupper faces and throughout their lengths with a groove 7, centrallylocated and in exact vertical alignment with the space between thecleats 3.

5 designates a series of upper guide-strips, each of which is located inand forms the top of a compartment. tudinally grooved, as at G, upontheir upper and lower faces, said grooves being centrally located and invertical alignment with the grooves in the lower guide-strips. This com`pletes the drier-section,' and a series of such sections are, as shown,piled one upon the other. In such an arrangement the divisional stripsof the sections are in vertical alignment, so that the compartments alsoalign.

The section above the lower section is not provided with the lowerguiding grooved strip 8, as the upper groove 6 of the upperguiding-section 5 of the lower dryingsection takes the place thereof,and in a similar man- These strips are longif embraced by the innerfaces of the pairs of IOO ner ldo the corresponding strips of the saidsection form the bottoms of the third and (in this instance) topsection. The upper ends of the compartments of the top drying-sectionare provided with upper guide-strips 9, having central longitudinalgrooves 10 upon their under sides, similar to the strips 8, thoughinverted.

Any suitable system of drying-pipes may be located under, around, orover the sections or casing; but I prefer to employ the system hereinshown, (dotted lines, Fig. 2,) which is of substantially convolute form,the pipe composing the system being gradually reduced from its supply toits discharge ends, and in this way the steam is maintained a ,longerperiod of time between the entering and discharge ends-than if the pipeswere of a' uniform bore throughoutv theirslength.

By the above construction the veneers are held somewhat snugly inposition. The drying commences at the cente1's,.they beingthe mostexposed, and gradually radiates to the edges, which are to some extentprotected by the guidingfstrips. It is apparent that any desired sizesof veneers may be successfully dried and that the capacity, form, andproportions ofthe drier may be changed to suit the wishes of the user. u

In my experiments to produce a successful drier for veneers I tested thevarious driers now on the market and found that one great fault withthem all is thatV none provide side projections or cleats, such as 3,tokeep the veneer from warping. These cleats will hold the veneerstraight while drying. It will be seen that I provide two sets of suchclosets between the guide-strips for the ends of the veneer sheets; butof cou rseI do not wish to be limited to the number of cleats employed,as

everything depends on the length of the lumber to be dried.

Having described my invention, what I claim is- 1. Adrier-sectionconsisting of opposite series of vertical divisional strips 2, oppositepairs of cleats 3, connecting the series and 2. In a drier, thecombination of a series of sections 2, arranged one upon the other, eachconsisting of opposite series of vertical partitions 2, pairs ofopposite horizontal cleats 3, connecting the partitions of one serieswith those of the other and having their ends upon adjacent sidesbeveled to form iiared entrances to the several compartments formed bythe partitions, a series of guide-stripsS, each centrally andlongitudinally grooved uponits upper side, located in the bottoms ofeach compartment of' the lower section, and similar inverted strips 9a'in each compartment of the uppermost section, and oppositely-groovedguiding-strips, as 5, located at the upper ends of each compartment oi'the lower and superimposed sections, with the eX- ception of the saiduppermost section, substantially as specified;

3. In a rack for drying lumber or veneers, the combination ofpairs ofguide-strips provided with oppositely-arran ged grooves placed parallelto each other, substantially as described, and adapted to receivebetween them the sheets to be dried, the vertical partitionstripsseparating the sheets of lumber from each other, and the plurality ofhorizontal cleats 8, arranged in pairs and attached to the opposingsides of the partition-strips, so as to come on opposite sides of thesheets of lumber and hold them from warping, combined and arranged asset forth. y

In testimony that I claim the foregoing as my own I have hereto aflixedmy signature in presence of two witnesses.

UPTON E. BRUMBAUGII.

Witnesses:

WM. T. MoDoUGLE, GEO. B. WINOHELL.

